security – Page 15

Restrictions on File Urls

Last Update: April 21, 2026 For security reasons, Microsoft Edge 76+ and Chrome impose a number of restrictions on file:// URLs, including forbidding navigation to file:// URLs from non-file:// URLs. If a browser user clicks on a file:// link on an https-delivered webpage or PDF, nothing visibly happens. If you open the Developer Tools console on the webpage,Continue reading “Restrictions on File Urls”

Aw, snap! What if Every Tab Crashes?

Update: I wrote a more comprehensive post about troubleshooting browser crashes. For a small number of users of Chromium-based browsers (including Chrome and the new Microsoft Edge) on Windows 10, after updating to 78.0.3875.0, every new tab crashes immediately when the browser starts. Impacted users can open as many new tabs as they like, butContinue reading “Aw, snap! What if Every Tab Crashes?”

Web-to-App Communication: App Protocols

Note: This post is part of a series about Web-to-App Communication techniques.Last updated: April 20, 2026 Just over eight years ago, I wrote my last blog post about App Protocols, a class of URI schemes that typically1 open another program on your computer instead of returning data to the web browser. A valid scheme name isContinue reading “Web-to-App Communication: App Protocols”

Spying on HTTPS

When I launched Chrome on Thursday, I saw something unexpected: While most users probably would have no idea what to make of this, I happened to know what it means– Chrome is warning me that the system configuration has instructed it to leak the secret keys it uses to encrypt and decrypt HTTPS traffic toContinue reading “Spying on HTTPS”

Updating Browsers Quickly: Flags, Respins, and Components

By this point, most browser enthusiasts know that Chrome has a rapid release cycle, releasing a new stable version of the browser approximately every six 4 weeks (2022 Update: now every four weeks). The Edge team adopted that rapid release cadence for our new browser, and we’re already releasing new Edge Dev Channel builds everyContinue reading “Updating Browsers Quickly: Flags, Respins, and Components”